Small issue with my S&W airweight.

The cylinder release on my 638 keeps loosening itself up. The screw loosens by itself. I have to tighten it about once a week. I don't even have to shoot the gun in order for this to occur. The screw loosens up just by me carrying it daily. Any ideas of why? It is kind of a new issue. Thanks in advance.

Take it off, degrease the threads with a Q-Tip and alcohol.
Then put one very small drop of BLUE #242 Lock-Tight on it and put it back together.

After the LT cures overnight, it won't come loose again unless you want it too.

If you are talking about the ejector rod unscrewing, do the same L-T thing to it.

rc

jon86

November 30, 2012, 04:45 PM

Thanks RC.

Yes, I am talking about this screw:

Guillermo

November 30, 2012, 04:57 PM

yep

RC's instructions are for that screw.

Fixed easy.

:)

MikeJackmin

November 30, 2012, 10:08 PM

On a slightly related note, why does BLUE loctite come in a RED tube? I hate that.

Guillermo

November 30, 2012, 10:20 PM

why does BLUE loctite come in a RED tube?

I have no idea.

Brian Williams

December 1, 2012, 04:45 AM

Another thing to try is to clean the threads with Alcohol and then rub a bit of beeswax or Ivory soap in the threads. it provides a bit of lube and sticky but does not have the "problems" of Locktite. Good beeswax is best.